Doorstop



,d an' 11 1927' A. RICKENBACHER DOORSTOP Filed Sept, 8, 1925 7* A jp` l l I ww@ Patern'tedk Jan. 11, 1927.

UNITED STATES ADOLPH IRLICKIEiNIBACHERa OF LOS ANGELES, CALIFORNIA.

DOORSTOP.

Application filed September 8, 1925. Serial No. 54,932.

This invention relates to a door stop and it is an object of the invention to provide a device for stopping or holding a door, or the like, in any desired position.

1t is an object of this invention to provide a door stop adjustable to oder any degree of resistance to movement of a door ranging between only slight resistance and practically positive resistance.

1t is another object of this invention to provide a door stop which is easily and quickly adjustable to vary the resistance offer-red to movementof the door.

A further object of this invention is to provide a door stop of simple7 inexpensive construction and which is simple to install and operate.

rithe various objects andv features of my invention will be best and more fully understood from the following detailed description of a typical preferred form of the invention throughout which description reference is had to the accompanying drawings in which:

Fig. 1 is a view showing the device provided by this invention applied to a typical.v

door.

Fig. 2 is a vertical detailed sectional view of the construction provided by this invention.

Fig. 3 is a side elevation of a portion of the device being a view taken as indicated by line 3 3 on Fig. 2. Y

Fig. 4 is a detailed sectional view taken as indicated by line 4 4 on Fig. 2.

Fig. 5 is a plan section taken as indicated by line 5 5 on Fig. 2.

Fig. 6 is a side elevation of a ioor plate suitable for use in connection with the other parts of the device.

My present invention is capable of embodiment in various forms and is useful in various situations. The device of the present invention is particularly suited for use in connection with a door and is operable to otter resistance to movement of the door so that it will remain in place unless delibf erately operated. lI will proceed to describe a typical preferred form of the invention as applied to a door such as will be found in an ordinary dwelling.

1n the drawings numeral 10 designates a typical door mounted in the usual casing 11 on hinges` 12. rlhe device provided by this invention is adapted to be mounted on the door to engage the floor 13 over which the door swings to offer resistance to movement of the door.

rThe device provided by this invention includes, generally, a cylindrical body 14 adapted to be mounted on the door 107 a stem 15 carried by the body, a roller 17 carried by the stem to engage in the floor 13, a spring 18 carried by the body and normally urging the stem downwardly7 control means 19 operable to control the rotative position'of the stein with reference to the body, and various other parts, the details and functions of which will be hereinafter described.

The body 10 is cylindrical in form and is closed at its upper end by a cap 20. Brackets 21 are provided at `the exterior of the body whereby it can be mounted on a door 10, or the like, by suitable means suchias screws. y

The stem 15 extends upwardly through the body and projects through an opening 23 in the cap 2G.` riihe opening- 23 inthe cap is preferably round and carries the stem so that it can rotate and move longitudinally. 1n the forni of theV invention shown in the drawings the stem is formed of-two flat metal strips arranged together. The stem 1 5 is supported or guided in the vlower portion of the body bya disc 24. The disc is supported-on an upwardly facing shoulder 25 on the stem and is provided at the periphery with a flange 26 slidably fitting the body. The downward movement of the stein in the body may be limited bv suitable stop means, for instance the uppei' ends of strips-of metal ont of which the stein is formed maybe bent or turned outwardly above cap 20 as shown at 27.

Thevroller 1'? which is adapted to engage the floor is mounted on the lower end of the stein7 for instance7 in a yoke 30 formed at the lower end of the stem. rEhe roller may be car 1ied on a pivot pin 31 mounted in the yolre and is preferably provided with a friction tread 32. 1n practice I prefer to form the rollerl of rubber, as tais material is easily obtained and formed, and will not scratch or mar the floor on which it operates.

The spring 18 provided for normally urging the stem downwardly may be a helical spring arranged under compression between the capy of the bodyfand the disc 24. With this arrangement the spring normally urges the stem downwardly; the downward movement of the stem being limited by the outwardly turned part 27 at the upper end of the stem.

rlhe means 19 provided for controlling the rotative position of the stem with reference to the body may include a part in the form of a plate connected with or carried by the stem and an operating lever 36 projecting from the plate 35 through an opening 3T in the side of thecap so that it can be engaged at the exterior of the body. In the preferred arrangement the plate is arranged between the upper end of the spring 18 and the cap 2O and is provided with an opening which slidably passes the stein but prevents relative rotary movement between the plate and stem. The operating lever 36 may be in the form of a projection extending from the periphery of the plate. The lever 36 operates to hold the plate against rotation with reference to the body by engaging notches 10 provided in the upper edge of the opening 37 in the cap. The lever 36 co-operates with the notches 40 so that the lever and plate 35 will not turn or rotate with reference to the body, unless deliberately operated by engagement with the outer part of the levers. The plate 35 being thus held against rotation operates to hold the stem against rotation.

As means for rendering the device inoperative, for instance, for setting the device in position where the roller is in a raised position out of engagement with the floor, I may provide a washer 42 between the top ofthe cap 2() and the outwardly parts 27 of the stem. The washer 42 may be provided with an opening which slidably passes the stem. The stem may be provided'with notches 50 at a point spaced from its upper end and into which the washer 42 may be turned. Under normal conditions the washer does not in any way interfere with the operation of the device. However, when desired the washer may be operated to hold the device inoperative upon being turned to engage the notches V after the stem has been moved upwardly to move the notches into line with the washer.

rlhe floor plate 51 provided by this invention is adapted to be applied to the floor 13 to cooperate with the device herein above described. The plate may be formed of sheet metal and may be provided with a hump part 52 over which the roller may be passed. Further, the plate may be provided with a stop part 53 past which the roller cannot be moved and which therefor forms a positive stop limiting movement of the door. The plate may be provided between the hump 52 and stop part 53 with a concave socket part 54 adapted to receive and hold the roller.

In operation the device is applied to a door 10 in the manner shown in Fig.. 1 of the drawings, it being preferred to mountit at the outer part of the door as shown in the drawings. The floor plate is mounted on the floor by suitable means such as screws or tacks, to he in the path of movement of the roller, for instance, at a point to hold the door in a wide open position. The device is mounted on the door so that the spring normally holds th-e roiler in pressure engagement with the iloor and the spring is made strong enough to hold the roller fairly tight against the floor. Wh-en the stem is adjusted with reference to the body so that the roller faces its line of movement the door is yieldingly held against movement about the hinges because of the contacting of the roller with the fioor due to the action ofthe spring. If it is desired to increase the resistance to the movement of the door the lever 3G may be turned or moved in the opening in the side ofthe cap turning the stem and therefore the roller so that .the roller does not face squarely the path of its movement. Vith the roller thus faced at an angle to the direction in which it is moved it will have more or less of a dragging action. rIhe resistance to movement of the door may be thus varied by varying the angularity of the roller, that is the direction in which the roller faces with reference to itspath of movement. 1f the roller is turned at right angl-es to the path of movement it will have a positive dragging action and no turning action. lin this case the device operates practically as a positive stop for holding the door against movement. This is particularly true when the roller is formed of rubber sufficiently soft to effectively grip the floor. Upon operating the doorso that the roller passes over the hump of the floor plate it is securely and .effectively held against movement, even though the roller may be adjusted to offer only the minimum resistance to movement.

Having described only a typical preferred form of my invention l do not wish to limit myself to the specific details set forth, but wish to reserve to myself any changes or variations that may appear to those skilled in the art or fall within the scope of the following claims:

Having described my invention, l claim:

1. A door stop including a body to be mounted on the door, a stem carried by the. body, a roller mounted on the lower end of the stem to engage the floor over which the door swings, means normally urging the stem downwardly, and means for holding the .stem in various rotative positions with reference to the body.

2. A door stop including, a body to be mounted on the door, a stem carried by the body, a roller carried by the lower end of the stem to engage the floor over which thc door swings, a spring carried in the body normally urging the stem downwardly and means for holding the stem inV various rJtativ@ positions with reference to the body.

3. A door stop including, a cylindrical body closed at its upper end, a stem carried by the body, a part on the stem guidingit in the lower part of the body, a roller on the lower end of the stem, a spring in the body Linder compression between the upper end o1 the body and said part, and means for holding the stem in various rotative positions with reference to the body.

t. A door stop including, a body to be mounted on a door, a stem carried by the body, a roller carried by the lower end ot the stein to engage the floor over which the door swings, means for releasably holding the stem against rotation relative to the body, means normally urging the stem downwardly, and releasable means for setting the stein in position when the roller does not engage the floor.

5. A dooiI stop including, a body tok be iounted in the door, a stem carried by the bodya roller carried by the stem to engage the floor over which the door swings, and

means for holding the stem in various rotative positions with reference to the body, said means including a part on the stem within the body and an operating lever eX- tending to the exterior of the body through an opening in the body.

6. A door stop including, a body to be mounted on the door, a stein carried by the body, a roller Carried by the stem to engage the floor over which the door swings, and means for holding the stem in various rotau tive positions with reference to the body, said means including a part on the stem within the body, an operating lever extending from said part through an opening in the body, and parts on the body at the opening for holding the lever against movement.

7. A door stop including, a body to be mounted on the door, a stein carried by the body, a roller mounted on thel lower end of the stem to engage the floor over which the door swings, means normally urging the stem downwardly, means for holding the stem in various rotative positions with reiference to the body, and a Hoor plate to be engaged by this roller.

8. A door stop including, a body to be mounted on the door, a stem carried by the body, a roller mounted on the lower end of the stein to engage the floor over which the door swings, means normally urging the stem downwardly, means for holding the stem in various'iota-tive positions with reference to the body, and a floor plate to be engaged by the roller and including a part over which the roller can pass and a part to positively stop the roller.

9. A door stop including, a body to be mounted on the door, a stein carried by the body, a roller carried by the lower end of the stem to engage the floor over which the door swings,.a spring carried in the body normally urging the stem downwardly, and means for holding' the stein in various rotative positions with reference to the body, said means including a part on the stem in the body, a lever extending from said part through an opening in the body, and notches at one edge ot' the opening in the body to be engaged by the lever, said part being engaged by the spring so that the lever is normally held in engagement with the notches.

In wit-ness that I claim the foregoing I have hereunto subscribed my naine this 2nd day of Sept., 1925.

` ADOLPH RIOKENBACHER. 

